Not really. I remember a lot of people didn't post just five words. A lot of people posted more than that, and only sometimes in parentheses or smaller font. Sometimes they quoted others. Sometimes they added smilies. You'll need to find a way to get around all of that.

I collected it (or the original 4-word story) once; did that by going into Print View, and copying the entire thread into a text document, and simply removing all but the words manually. I think that since most of the bits are fairly repetitive - for example, taking this randomly -